Gas-heater.



No. ss3,|44. Patanted Sept. 24, IQ'OI."

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GAS HEATER.

(Application filed Dec. 17, 1900.)

(No Model.) 1 4 Sheets-Sheet J.

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MMHMHIIMIIIIIM C 7w m WITN %M 44 4 m! w iawmg ATTORNEYS No. 683,!44. Patented Sept. 24, l90l.

E. W. T. RICHMOND.

GAS HEATER. (Application filed Dec. 17, 1900.) (No Model.) 4 Sheets-Sheet 2.

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Patented Sept. 24, l90l.

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(Application filed Dec, 17, 1900.)

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No. 683,144. Patented Sept. 24,190l. EJW. T. RICHMOND.

GAS HEATER.

(App1ication filed Dec. 17, 1900.) (No Model.) 4 Sheets-Sheet 4.

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UNITED STATES PATENT EDMOND W. T. RICHMOND, OF ROMFORD, ENGLAND.

GAS-H EATER.

SPECIFICATION forming art of Letters Patent No. 683,144, dated September 24,1901.

" Application filed December 17, 1900. Serial No. 40,138- (No model.)

To all whom it may concern:

Be it known that I, EDMOND W. T. RICH MOND, a subject of the Queen of Great Britain, residing at Summercourt, Romford, Essex county, England, have invented certain new and useful Improvements in Gas-Heat= ers, of which the following is a specification.

My invention relates to a type of gas heaters in which vertical tubes extending beof Fig. 1. Fig. 4 is a section of the line at 4 of Fig. 1. .Fig. 5 is a detailed view of the fire-brick fuel-holder. Fig 6 is a bottom Figs. 7 and 8 are plan view of the burner. detailed views showing the feature of ad- .j-ustability of the burner to adapt it to gases of varying characteras, for instance, ordinary illuminatingas or water or producer gas. Fig. 9 is a detailed View of the front plate or frame covering the lire-box, and Fig. 1-0 is a detailed View of the lower part of the cast-iron box in which the fire-brick fuelholder is placed.

A is a hollow cap, upon which the skeleton or open-work ornamental cover D is attached by screws Z). There is a space 1) between the downwardly-extending edges of the cover and the walls of the cap to permit of free circulation of air.

O is the base, which is supported upon the flange extensions 0. Between the base and cap extend hollow tubes, the whole structure being appropriately secured by bolts, as shown. In the particular construction shown there are four tubes D at the rear and two tubes D D at the front, all of which tubes extend from the cap to the base and are in open communication with both of these parts. The two front middle tubes E E are approximately about one-half the length of the others and at their lower ends are affixed to the plate E, having lugs e at its sides, which fit over the upper edges of the sidesf of the vertical iron box F, the back plate f of which has a forwardlyprojecting flange and is bolted to the rear part of the plate E, as at f The lower edges of the side and rear walls rest upon the top surfaces of the base (1-, which is indicated by the dotted line c in Fig. 4:. The back platef of the box is notched or perforated, as at f, to receive the gassupply by pipe G entering from the rear and lying in an inclined groove 9, formed in the top face of the base, where it is connected at g bya coupling with the pipe projecting from the burner. The burner is shown in Figs. 6, 2, and 4. It consists of a casting having side wings it h resting upon ribs or flanges f, projecting from the sides and rear wall of the box F, these members of the box being all preferably cast in one piece. The burner consists of a cored casting of skeleton structure, such as is shown in Fig. 6, having a hol: low part H of substantially rectangular contour, the sides of which are connected by a hollow portion H, on the upper face of which the burner-nipples h are formed or mounted. The rear portion of the hollow part II of the burner is connected by cross connections with and on the underside, as seen in Fig. 6, there is a break or gap in the continuity of the part -H, connected by asemicircular open trough H also forming part of the casting, leaving two opposite entrances h h te the passage H. From the trough H there projects a horizontal flange H having centrally in it a dovetailed recess H The part of the burner regulating the supply of gas and air consists of a hollow portion I, having cylindrical ends '0', an internally-threaded opening 2" inits under face to receive the threaded end of ,the gas-. pipe G, which is connected by a coupling g. with the gas supply pipe G, a dovetailed flange I, projecting horizontally from the hollow part I, fitting in the dovetailed recess H of the flange H and secured therein by screws 1 The cylindrical ends 71 stand opposite and concentric with the openings h 7t in the part H ofthe burner and are closed at their ends except for the multiple perforations therein.

On the cylindrical threaded ends tare secured sleeves K, having at their outer ends forwardly-flaring flanges k, with multiple perforations 7t therein. By screwing these sleeves toward or from the openings h the space between the periphery of the flanges and the edges of the opening it may be enlarged or diminished and the quantity of air so admitted to the part H of the burner regulated. The apertures in the flange also permit of the influx of a certain quantity of air to the opening 71/3, and the flanges. also act as shields to prevent firing back. A gas -jet of this character permits of a ready adjustment of its parts to adapt it most favorably to the kind of gas which is admitted through it to the burner H. The fire-brick fuel-holder L may be and preferablyis formed in one piece. It has side wings L L and a grooved back L that at the top curves forwardly, and a bottom portion L that projects between the wings L, but does not extend out flush with their front faces. The grooves Zin the back plate are continned across the face of the bottom L thus forming raised ribs Z thereon. This fire-brick box, in which the fuel (indicated by X in Fig. 4) is placed and which may be of any suitable refractory material, is of the horizontal crosssection shown in Fig. 5, which corresponds with the horizontal cross-section of the castiron box F, in which it closely fits, resting at the bottom upon the upper faces of the projections 71', cast with or attached to the part H of the burner. To the front of the box F is applied an open rectangular frame M, having at the bottom feet m, bolted to the base 0, as shown in Fig. 1, and near the top a rearwardly-extending threaded bolt m, that lies in the space between the two vertical lugs m on the top of the plate E, between the columns E E, and has applied to it a nut m bearing against the rear face of the lugs.

Above the fireplace-opening the upper-part of the frame M is closed or solid and is suitably ornamented, as may be desired and 5 air and the products of combustion, radiating it into the room, and the products of combus- At the sides of the j condensed, and such watery vapor as is presout is reduced to liquid form and discharges 5 through the aperture in the base intothe pan as is indicated in Figs. 1 and 4-that is to say, it may be cast with an appropriate raised or ornamental-pattern. frame M are rearwardly-extending projecting arms or lugs m, which embrace the side walls of the box F and are attached to them by screw-bolts m as seen in Fig. 1. At the opening in the frame opposite the fireplace there are inwardly-extending flanges m, that are in contact with or in close juxtaposition to the front face of the wings L of the firebrick fuel-holder. In the special construction shown the fuel is held in place by an open-work skeleton frame N, which may be of cast-iron and is provided with side lugs 71', which are bolted-to the front of the side bars of the frame. The bottom bar of the skeleton frame N has a series of inwardly-projecting pins or fingers a. The fuel partly rests upon these fingers and upon the bottom L of the fire-brick holder. The fingers n are preferably somewhat above the level of the top face of the bottom L of the fire-brick holder,

and there is an interval of space between their rear ends and the bottom portion L of the fire-brick. The burner-nipples h are located in a plane below the lower face of the bot tom L of the fire-brick, but somewhat in front of it, so that the jets of flame rising from the nipples will pass between the fingers and into contact with the artificial fuel. The base 0 is closed at the bottom by the plate 0, hav ing flanges 0, fitting against the interior in= clined walls of the base and secured to it by screw-bolts, as shown in Fig. 4. This plate 0 has a central aperture, above which is sup ported a baflle-plate P, and beneath the ap crture in the plate 0 is located a removable water-pan Q, which may he slipped into position through the opening in the front wall of the base. An opening, however, may be provided at the rear of the base or at either end for the insertion or removal of this pan.

In Fig. 9 I have shown a somewhat-modified construction of the frame M. It is in part constructed substantially as already described, except that a supplemental plate R, having an ornamental face, is provided. When the heater is in use, this plate is raised, so as to cover or lie over the upper solid part of the frame already described; but when the apparatus is not in use the plate R, which is held in its elevated position by a pivoted headed bolt 0", entering in a projection r at the top of the frame, may be lowered into the position shown in dotted lines in Fig. 9, so as to cover the openingof the fireplace. In this movement the side lugs of the plate R travel in ways formed in the sides of the frame M. The products of combustion and air rising in the fire-box pass by the tubes E E into the hollow cap and there divide among the four 1 rear tub'es'D and the front side tubes D, down f which they pass into the hollow base. 1 superficial area of the pipes D D, the hollow The cap, and the hollow base is relatively large and is such as to take up the heat from the tion and air being correspondingly cooled are Q. A considerable part of such non-combustible gases that would tend to vitiate the atmosphere of the room is absorbed and retained by the water, While the residue, mainly carbonic acid, is discharged adjacent to the floor of the apartment and being for the most part heavier than the atmosphere does not rise. In addition to the heat radiated from the metal parts of the apparatus there is a direct heat thrown out from the incandescent artificial fuelwhich also afiords a bright and attractive open fire. A feature of the invention is that the cooling and condensing surface shall be of sufiicient area to cool and correspondingly condense not only the products of combustion and air entering at the bottom of the fire-brick below the fingers u, but also the relatively large volume of air which is drawn in through the open front of the fire and effect the condensation of the water'vapor present. Furthermore, the cooling-effect and the corresponding condensation are such as to induce a proper and suitable draft up through the fire-box and tubes E E and down the other tubes into the hollow base. These features are material to produce the most satisfactory and most efficient operation of a heater of this kind, which is distinguished from those radiator-like heaters wherein a more gas jet or burner is provided at the base of one of the tubes. A number of forms of apparatus of that class have been proposed, but they all have objections which have prohibited their use except to a very limited extent. A further advantage of the construction that has been described is that the firebrick fuel-holder is arranged vertically opposite the fireplace-openin g and has its rear wall inclined forwardly at the top, thus efficiently radiating into the room a large portion of the heat absorbed by it.

I claim as my invention-= 1. The combination of a hollow cap and base, tubes connecting them, an open-faced fire-box mounted on the base and communieating at the top with a short tube or tubes connected with the cap, flanges projecting from the wall of the box near its lower end, a burner removably mounted thereon,a gas connection to the burner extending from the rear of the apparatus across thetop face of the base, a fire-brick fuel holder fitting within the box above the burner and having a bottom portion upon which the fuel partly rests, and a fuelguard applied at the front of the fireplace and having inwardly*projeoting fingers upon which also the artificial fuel partly rests.

2. The combination of a hollow cap and base, tubes connecting them, one or more 'short tubes depending from the cap and secured at their lower ends ina plate, a firebox having rear and side walls resting upon the base and its top formed by said plate, a burner located at the bottom of said box, a pipe for conveying gas to the burner entering the rear of the fire-box, a fire-brick fuelholder located above the burner and having side wings, a rear wall and a relatively narrow bottom portion, a fuel-guard applied at the front of the fire-box and having inwardlyprojecting fingers partly supporting the artificial fuel and located in a plane above the upper surface of the bottom portion of the fire-brick.

3. The combination of a hollow cap, a hollow base having an opening in the bottom thereof, tubes connecting the hollow cap and base, a fire-box adjacent to the base, a burner located at the bottom of the fire-box, a fuelholder located above the burner, one or more the hollow cap,

tubes connecting the top of the fire-box and a baffle-plate supported within the base opposite the opening in the bottom thereof, and a water-pan located under the opening.

4. The combination of a hollow cap, a hollow base having an opening in the bottom thereof tubes connecting the hollow cap and base, a fire-box mounted on the base, a burner at the bottom of the fire-box, a fire-brick fuel holder for artificial fuel located above the burner, tubes connecting the top of the firebox and the hollow cap and a water-pan lo cated under the base opposite the opening therein.

5. The combination of a hollow cap and base,tubes connecting them, a fire-box mounted on the base and having inwardly-projecting flanges near its bottom, a burner removably seated on said flanges, a jet for supplying thegas to the burner attached to the front portion thereof, a pipe for supplying gas to the jet entering the rear of the apparatus and connected at its front end with the jet, a fire brick fuel-holder located above the burner, tubes connecting the top of the fire-box and the hollow-cap, and a fuel-guard applied at the front of the fire-box and having inwardlye projecting fingers serving to partly support the artificial fuel.

6. The combination of a hollow cap, a hollow base, tubes connecting them one or more tubes depending from the hollow cap,- aplate in which their lower ends are secured,an openface box interposed between the base and said plate which forms the top thereof, a firebrick fuel-holder located in the box, a burner located in the bottom of the box, and a fuelguard applied across the open face of the box.

7. The combination of a hollow cap, a hollow base, tubes connecting them one or more tubes depending from the cap,a plate in which their lower ends are secured, an open-face box mounted on the base and of which said plate is the top, a burner located in the bottom of the box and having projections h and a firebrick fuel-holder located within the box and resting upon said projections.

8. The combination of a hollow cap, a hol low base, tubes connecting them one or more tubes depending from the cap, a plate in which their lower ends are secured, an open-face box interposed between the plate and base and of which the plate forms the top, a burner located at the bottom of the box, and a firebrick fuel-holderlocated in the box and adapt ed to hold artificial fuel to be heated by the flame from the burner.

In testimony whereof I have hereunto subscribed my name.

EDMOND W. T. RICHMOND. Witnesses:

KATHARINE MACMAHON, EDWARD C. DAVIDSON.

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